Income Taxes (Summary Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	$ 2,708	$ 3,742
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits	2,912	2,734
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions	1,912	1,794
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	1,196	2,276
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Impairment LossesImpaired assets	703	1,201
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	0	1,871
Deferred Tax Assets, Goodwill and Intangible assets	479	783
Deferred Tax Assets, Other	6,584	6,492
Total Deferred Tax Assets	16,494	20,893
Deferred Tax Liabilities, Investments	3,709	0
Deferred Tax Liabilities, Other	6,116	3,555
Total Deferred Tax Liabilities	9,825	3,555
Deferred tax asset, net	$ 6,669	$ 17,338